Side-hill plow



(MomieL) R. I. KNAPP. SIDE HILL PLOW.

Patented Oct. 3, 1882- '"lllllllllllllllllllm inullllnlllllullllllm'.a a'\\ "FFICE.

ATENT ROBERT I. KNAPP, OF HALFMOON BAY, CALIFORNIA.

SIDE-HILL PLOW.

SPECIFICATION forming part of Letters Patent N0. 265,328, dated October 3, 1582,

Application filed November 29, 1881.

T 0 all whom it ma y concern Be it known that I, ROBERT I. KNAPP, of Halfmoon Bay, county of San Mateo, State of California, have invented an Improved Side- Hill Flow; and I hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to certain improvemerits in side-hill or reversible plows, and it is more especially applicable to a plow for which Letters Patent were i sued to me on the 7th day of September, A. D. 1875, No. 167,402.

My present invention relates to an improved means of securing and swiveling the share to the frame, and a means of swiveling and looking the beam, so as to throw the plow to or from the land.

It also relates to an improvement in the form of the share to its right or left position, as will be more fully explained by reference to the accompanying drawings, in which- Figure l is a side elevation of the plow. Fig. 2 is a top view. Fig. 3 is a rear view. Fig. 4 is a view of the share and moldboard.

In my former patent the share was secured to the frame by an independent rod or bolt, which extended across at a point where it was liable to become clogged by dirt.

In my presentinvention, Ais the plow-beam, which is supported upon the standard B.

G is the landside, and it has a cylindrical stud, a, projecting from its front end, and this stud enters a corresponding hole in the thickened lump or nose-piece D, on the under side of the plow-point. The rear end of the landside has a depression to receive a stud, b, which projects from the lower end of the brace E. The upper end of the brace is secured to the mold-board by a bolt, as shown, and the share will thus turn around the studs as a center. A long bolt, F, passes through the two studs a and I) through the whole length of the landside, and it has screw-threads cut uponits ends, so that it may be inserted and screwed into the nose-piece D, and thus hold the whole firmly together without presenting any surface to clog.

This plow is especially valuable for use in vineyards, where it is employed to throw the earth upon each side of the rows, and in order to throw the plow to or from the land the beam is fitted to turn upon the top of the stand- (Modem ard B. A slotted plate or rest, H, lies horizontally beneath its rear end, being secured to the front part of the handles so as to support it. A bolt, I, passes through the end ofthe beam and the slot, and it has a nut, 0, which may be drawn up against the bottom of the plate or rest H. This nut is used in preference to a fixed head, because it can be adjusted upon the bolt, so that if the cam becomes loose and fails to loclr, the nut may be set up and the ad- JUSUIDQDlirlZllILIS made. A cam-lever, J, is pivoted to the top ofthe bolt, and when it is turned toloosen the bolt the end of the beam may be turned from side to side. By simply moving the cam-lever in the opposite direction the beam is rigidly locked in place, Without the use of screws or nuts needing wrenches to adjust.

The share in my plow is made concave toward the point, each side K K turning up equally in order to adapt it to its two positions upon opposite sides of the beam and give it equal facility to turn the soil to the right or to the left; but the upper rear portion, L, of the mold-board, instead of being continued concave, is gradually flattened out until it presents a nearly or quite plane surface, so that the action will be to turn the soil over with equal facility whether the share is at the right or left of the beam. The concavity of the moldboard is continuous with that of the share in the direction of its length; but in its transverse dimensions the concavity extends from the Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. In a reversible mold-board plow, the landside 0, having the stud a, entering an opening in the part D, and the socket to receive the stud b, projecting from the brace E, in combination with the bolt F, extending through the landside and studs and screwing into nosepiece D, substantially as and for the purpose herein described.

2. In combination with a reversible moldboard plow, the beam A, swiveling upon the standard B, the horizontal slotted plate H, secured to the handles below the rear end of the beam, the bolt 1, extending through the beam and the slot in the plate, and the locking camlever J, the whole combined to operate substantially as herein described.

3. In a plow, the beam A, swiveling upon the standard and having its rear end moving from side to side upon the rest-plate H, in combination with the belt I and cam-lever J, as shown, the belt I having the adjustable nut c, substantially as and for the purpose herein described.

4. In a reversible nioldboard plow having the share inade concave, with the edges'K K hand.

2. I. KNAPP. \Vitnesses:

FRANK A. BRooKs,

H. NOURSE. 

